Improvement in piston-packing



J. H GUILEY. ,P iston Packing No. 215,349 Patented May I3, 1879.

WITNESSES- WZ I v V I %W% &J%

M ATTORNEY case may be.

.UNITED STATES PATENT OFFICE.

JACOB H. GUILEY, OF EAST SAGINAW, MICHIGAN, ASSIGNOR OF ONE-THIRD HISRIGHT TO WILLIAM E. STIGH, OF SAME PLACE.

IMPROVEMENT IN PISTON-PACKING.

Specification forming part of Letters Patent No.

April To all whom it may concern Be it known that I, JACOB H. GUILEY, of

East Saginaw, in the county of Saginaw and State of Michigan, haveinvented a new and valuable Improvement in Piston-Packin g and I dohereby declare that the following is a full, clear, and exactdescription of the construction and operation of the same, referencebeing had to the annexed drawings, making a part of this specification,and to the letters and figures of reference marked thereon.

Figure l of the drawings is a representation of a transverse section ofmy improved packin g, and Figs. 2 and 3 are longitudinal sectionsthereof.

This invention has relation to packings for piston, governor, and valverods, and valves; and it consists in the construction and novelarrangement of the contracting rings, the spring-holders, and theadjusting-screws, and the regulating slide-wedges, all as hereinaftershown and described.

In the accompanying drawings, the letter A designates thepacking-chamber, having the projecting bolts a to connect the heads B toit.

In the fioor of the chamber are perforations b, for the admission ofwater or steam, as the The opening 0 in the head B is of larger diameterthan the piston-rod, and an exterior concave plate, 0, having a smalleropening, is provided to be filled with felt or other soft material toprevent the admission of dust or grit into the chamber, and at the sametime'to allow play to the rod.

- Gen trally arranged within the packing-chamber are the packing-rings,consisting of an inner set of three rings, 0, and an outer set of tworings, (1, the latter set being equal in depth to the former set, andboth being about equal in depth to the chamber. All of these rings arecleft and act by contraction. The middle inner ring is provided withstuds, which engage with holes in the end rings and keep them with theircleft sides properly arranged to break joints. The outer rings are alsocleft, as

215,349, dated May 13, 1879; application filed indicated at g, theseclefts being turned in opposite directions and receiving the slidewedgesh, which are swiveled on the ends of regulatingscrews 70, which passthrough threaded apertures in the chamber-wall, and are provided withexterior jam-nuts n, to fix their adjustment. By loosening or tighteningthese wedges in the ring-clefts their tension :an be regulated accordingto requirement.

In order to take the weight of the rod off the packing-rings, slightconcave end or furcated springs s are used. bearing against the outerpacking-rings at their points. These springs are provided with centralbearingholes t, engaging the reduced ends n of the screws z, which serveto regulate their bearin g. These springs are, to a certain extent,automatic in their action, allowing the packing-rings to accommodatethemselves to the position of the engine when out of line. The steam orwater passing into the chamber A through the perforations 6 serves tocontract the springs in the rod, and the pressure is regulated by theadjusting-screws through the medium of the wedges and springs.

I am aware that it is common to form packings by means of cleft-rings,and I do not, therefore, claim such invention broadly.

What I claim as new, and desire to secure by Letters Patent, is-

The packing for piston-rods, 850., herein described, consisting of thechamber A perforated at b, the inner set of cleft'rin gs 0!, breakingjoints with each other, the slidewedges h, engaging the clefts of theouter rings, the

k 2, arranged as specified.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

JACOB HARTMAN GUILEY.

Witnesses GEORGE B. BROOKS, OHAs. H. CAMP.

holding-springs s, and their adj listing-screws

